Question

which theory about the origin of the universe states that a densely packed sphere exploded, forming clouds that condensed into galaxies?

○ the galaxy theory

○ the big bang theory

○ the steady state theory

● the oscillating theory

Explanation:

The Big Bang Theory states that the universe originated from a densely packed, extremely hot and dense singularity that exploded (or expanded rapidly), and the resulting matter and energy formed clouds that condensed into galaxies over time. The galaxy theory is not a recognized origin - of - universe theory in this context. The steady - state theory proposes that the universe is always expanding and new matter is continuously created to maintain a constant density, which does not match the description. The oscillating theory suggests a cycle of expansion and contraction of the universe, not the initial explosion of a dense sphere to form galaxies.

Answer:

B. the big bang theory